12122020121020 has 24 divisors (see below), whose sum is σ = 25504915779504. Its totient is φ = 4839536900736.

The previous prime is 12122020120993. The next prime is 12122020121033. The reversal of 12122020121020 is 2012102022121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12122020120985 and 12122020121003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579436009 + ... + 579456928.

It is an arithmetic number, because the mean of its divisors is an integer number (1062704824146).

Almost surely, 2^{12122020121020} is an apocalyptic number.

12122020121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122020121020 is an abundant number, since it is smaller than the sum of its proper divisors (13382895658484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12122020121020 is a wasteful number, since it uses less digits than its factorization.

12122020121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158893469 (or 1158893467 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12122020121020 its reverse (2012102022121), we get a palindrome (14134122143141).

The spelling of 12122020121020 in words is "twelve trillion, one hundred twenty-two billion, twenty million, one hundred twenty-one thousand, twenty".